#define _CRT_SECURE_NO_WARNINGS 1


# include <stdio.h>

int add(int x, int y, int z)
{
    return x + y + z;
}

float avge(int add)
{
    return add / 3;
}

int main()
{
    int x = 0;
    int y = 0;
    int z = 0;
    scanf("%.2float %.2float %.2float", &x, &y, &z);
    int a = add(x, y, z);
    int b = avge;
    return 0;
}